Rock In The Classroom pays homage to undertipped waitresses everywhere and explores the mathematics of computing restaurant tips at ten, fifteen, and twenty percent. Food for thought the next time someone asks you if they can take your order. Feel free to embed our video into your presentations. Find this song on iTunes at https://itunes.apple.com/us/album/the-left-hemisphere/id714433196 Rock In The Classroom is a nonprofit organization promoting creative arts in education programs. Learn more at rockintheclassroom.org Visit us by name on Facebook.. Follow Us on Twitter (Rock In The Classroom @neurosong)